Mop.



A. BUENZLI.

MOP.

DEC. 13. '91

PLICATION FILED N D IAN. 17. I918.

Patented Oct. 29. 1918.

A. BUENZLI.

APPLICAUON men utc. :3. ms. RENEWED mu 1 R1918. 1,282,746. Patented Oct. 29, 1918.

2 SHEYS-SHEEI 2.

'UNITED STATES PATENT OFFICE.

ADOLPH BUENZLI,

OF PARK, TENNESSEE.

Application filed December 18, 1915, Serial m. 66,521.

To all whom it may concern.-

Be it known that I, Aoonrn BUnNzLI, a citizen of the United States, residing at Park, in the county of Knox and State of Tennessee, have invented a new and useful Improvement in Mops, of which the followi ng is a specification. reference being bad to the accompanying drawing.

My improvement relates particularly to mops comprising a fiber fabric body, a handle. and means for securing the fiber fabric body to the handle.

The object of the improvement is to provide means for securing the fiber fabric body to the handle. such means being of a construction which is simple and economical and will firmly engage the handle and yet permit detaching the handle, in order that a worn-out fiber fabric body may be detachcd from a handle and another body attached to said handle.

In the accompanying drawings,

Figure 1 is an elevation of a mop embodying my improvement, portions being broken away;

Fig. 2 is a view in Fig. 1, the omitted;

Fig. 3 is a section on the line, 3-3, of Fig. 2. looking upward;

Fig. 4 is a view fabric body securing looking toward the right fiber fabric body being of the holder or fiber means detached from said body and from the handle and viewed in the same direction as in Fig. 2;

Fig. 5 is a plan looking downward upon the holder as shown in Fig. 4;

Fig. 6 is a side view of the lower end of the handle;

Fig. 7 is a view similar to Fig. 2,'the handle being provided with studs in lieu of threads and the ends of the holder wire being bent to form ears to facilitate engagement for releasing the holder from the handle. and the portion of the holder which receives the fiber fabric body being broadened or extended sidewise;

Fig. 8 is a view like Fig. 2, excepting that the lower end of the handle is tapered and the holder socket which embraces the handle is correspondingly tapered.

Referrin 7 first to Figs. 1 to G inclusive, A is the ban le, B is the holder, and C is the fiber fabric body or mass. Surrounding the lower end of the handle are'two circumfercntial screw thread groovesi A of proper pitch to leave spaces between them. The handle is usually made of wood'and the grooves, A

Specificationef Letters Patent.

with the axis of the said coils. a cylindrical at "the desired spiral Patented Oct. 29, 1918. Renewed January 17, 1918. Serial No. 212,368.

separated from each other to leave a spiral rib of wood between the grooves of sufiicient widthto prevent the chipping or breaking out of said rib. A further reason for thus separating said grooves lies in the fact that the wire coils forming the holder socket, as herein described, are to be separated from each other, and s id grooves must be spaced and located to adapt them to receive said l l I:

I ll

then spirally around the exterior of the handle, A, in one of the spiral grooves. A. thus formingcoils, B Said coils constitutc an elastic and self-adjusting socket for the handle, as hereinafter (lescribcd. The eye or ring, B surrounds the middle of the fiber fabric body. C, said body extending downward at each side of the eve until it two halves lie against each other in suir stantially the upright position.

The method of manufacture is as follows:

The handle. A, is formed separately and the two spiral grooves, A, cut themon around the lower end. A single piece of wire from which the holder, B, is to be formed is first folded upon itself at the middle so as to produce a narrow U-shapc blank,.resembling a large. elongated staple. The fiber fabric which is to compose the body, 0, is then extended crosswise through the lower portion of this blank. Then the two arms of the blank are bent across said body. whereby the eye, B is formed. Then each arm is bent across the plane of the eve and then spirally away from the eye. whereby two groups of oblique coils. B are formed, the coils of one group alternating with the coils of the other group and the coils of one group surrounding and being lique to an axis which is nearly common other group and which preferably cuts the axis of the eye. B in or at the plane of the eye. For the forming of mandrel. preferably metal and of approximately the size of the lower portion of the handle is placed 'into position to permit bending of the two around the mandrel pitch while suitable arms of the wireblank ltltl engage in the grooves,

mechanism is used for engaging and clamping the portion of the blank forming t e eye 'I he mass of the fiber fabric body, C, and the size of the eye, B, are so proportioned relative to each other as to cause the wire of the eye to intensel compress said fiber fabric. In forming t e coils, B, the wire is so pressed against and around the mandrel as to form said coils to adapt them to firmly A, of the handle. hen the mandrel has been removed an the eye has been freed from the devices by which it has been held, each group of coils forming the-socket moves sidewise parallel to a plane to which the axis of the eye, B, is perpendicular. Such movement is due to the resiliency of the ortion of the wire forming said eye and to the expansive efi'ort of the portion of the fiber fabric lying within said eye. This tendency on the part of these two groups laterally away from a common axial socket line mateirially increases the engagement between the handle and these coils, it being necessary to bring these groups of coils toward and across each other until approximate common axial alin-ement is attained before the handle can be entered and screwed downward into position. It the socket coils were made of a. pitch to cause said coils to lie in engagement with each other, their lateral pressure on the handle would be largely or altogether eliminated. Separated as shown in the drawings the two sets of coils are entirely independent of each other and have full freedom for the exertion of such lateral strain.

This lateral pressure of these groups of coils in opposite directions materiall supplements the ordinary enga ement ormed between a screw threaded soc at and a screw threaded handle extending intosaid socket. This added engagement is analogous to a plying transverse clamp pressure to t e parts of a split,threaded socket surrounding a handle. In practice have found that such aholder socket formed with only the number of coils shown in the drawings makes ample engagement with the handle for the practical use of the mop, and usually, when it is desired to detach the handle, it is necessary to apply a hand tool at the ends of the wire at the upper portion of the socket to spring the coils outward suiliciently to case their engagement with the handle.

Since this holder socket is composed of two sets of coils havin tendency for lateral movement as describe it is a self-adjusting socket ada ting itself to variation in the wood of t e handle due to wetting and drying. It may be said that this older socket is a duplex socket composed of two coil grou s which are largely or substantially in ependent of each, other. It may also be said that the lower erg} 3f the handle, A, serves as a key to hold the two groups of coils in common axial alinement and that the socket becomes completed by the insertion of the handle. It is also to be observed that bringing the into common alinement and then inserting the handle in the socket serves to further tighten the engagement of the fiber fabric body b the eye.

In t is connection, it is to be observed that the eye and said coils are so formed that any stress applied to the eye tending to turn the latter in either direction on an, axis parallel to the length of the handle tends to tighten the socket coils on the handle. Ap plying stress to said eye in one direction tends to screw said coils forward and up Ward on the handle. Applying stress to turn said eye in the opposite direction tends to contract or reduce the diameter of said coils and consequently increases their en gagement with the handle. Only applying stress to the ends of the coil wire in the manner already described tends to open or enlarge the coils.

In Fig. 7, the eye, B, is broadened or ex tended laterall so as to adapt it to surround a broadened ti er fabric body. In the same figure, the spiral grooves, A, of the preceding fi ures are omitted and studs, A are place on the handle in such positions as to cause them to stand between the coils of the holder socket when the latter is applied to the handle. In the same figure, the ends of the holder wire are elongated and bent to form ears, B, the purpose of said ears being to facilitate engagement for applying stress to ease or enlarge the holder coils.

The structure shown by Fig. 8 differs only from the structure shown by Figs. 1 and 2 in that the lower end of the handle, A, is tapering and the socket is correspondingly tapered, whereas in Figs. 1 and 2 the lower portion of the handle is of uniform diameter and the socket is correspondingly uniform.

When the lower end of the handle, A, is thus made ta ering it may be more readily entered into't e socket without first lacing the two coil groups fully into axia alinement.

I claim as my intention:

1. In a structure of the nature described, the combination of a fiber fabric body and a holder, said holder comprising an expansive eye and a handle socket consisting of two groups of wire spiral coils, the coils of one group alternating with and movable sidewise relative to the coils of the? other group and said groups being supported by opposing portions of the eye, the resiliency tending to move ,said groups of the eye laterally out of a common am 1 alinement, substantially as described.

2. In a structure of the nature described,

groups of coils 1 ll U mg with and being common axial alinement, and a handle in said socket, substantial] as described.

3. In a structure of t e nature described, the combination of a fiber fabric body and a holder, said holder being formed of a sin 1e piece of wire and comprising an eye an a socket which is composed of two groups of spiral coils, the coils of one group alternatfree from the coils of the other rou the wire slidably over-la ping itsel at t ie junction of the eye and tire socket, substantialy as described.

4. In a structure of the nature described,

.the combination of a fiber fabric body and a holder, said Holder being formed of a single pieceof wire and comprisin an eye at the middle of the wire and a soc et consisting of spiral coils formed at the ends of the wire, the grou of coils on one wire alternating with an being free from the other group, the wire slidably over-lapping itself at the junction of the eye and the socket, and a handle in said socket, substantially as described.

5. In a structure of the nature described, the combination of a fiber fabric body and Copies of this patent may be obtained for five cents each, by addressing the a holder consisting of a sin le piece of wire and comprising an eye at t e middle of the wire an groups of coils at the ends of the wire together forming a socket, the wire overlapping itself along a line transverse to the length of the holder and between the eye and the coils in such manner as to permit movement of the overlapping portions upon each other for the ex ansion and contraction of said eye and t e movement of said groups of coils into and out of axial alinement with-each other, substantially as de scribed.

6. In a structure of the nature described,

the combination of a fiber fabric bod and a holder consisting of a single piece 0 wire and comprising an eye at the middle of the wire and EIOI?)S of coils at the ends of the wire toget er orminga socket, the group of coils on one end of t e wire being movable sidewise relative to the group of coils on the other end of the wire, and the wire overla ing itself along a line transverse to t e ength of the holder and between the eye and the coils in such manner as to permit movement of the overlapping portions upon each other for the expansion and contraction of said eye and the movement of said groups of coils into and out of axial alinement with each other, and a handle in said socket, substantially as described.

In testimony whereof I have signed my name this 10th day of December, in the year one thousand nine hundred and fifteen.

ADOLPH BUENZLI.

"Commissioner of ratentl,

Washington, D. 0."

It is hereby certified that the residence of the patentee in Letters Patent. N 0.

1,282,746, granted October 29, 1918, upon the application of Adolph Buenzli, for

an improvement in Mops," was erroneously written and printed as "Park, Tennessee, whereas said residence should have been written and printed as Park City, Tennessee, and that the said Letters Patent shouid be read with this correction therein that the same may conform to the record'of the case in the l atent Oflico.

Signed and sealed this 26th duy of November, A. D., 1918.

[ax/m] R. F. WHITEHEAD,

Acting Commiuianer of Patents. 

